In this world, devils and fiends would roam the streets causing havoc, while hybrids would blend in with normal humans. Devil Hunters are authorities that are responsible of disposing of dangerous devils and fiends.

Devils (悪あく魔ま Akuma?, or デビル Debiru) are a race of supernatural entities appearing throughout the World. They are creatures that feed upon humanity's fears.

If they possess a body, the body would become theirs. The body would heal and they will gain full control.